hairy ball theorem

theorem which states that there is no nonvanishing continuous tangent vector field on even-dimensional n-spheres
Intangible theorem Q1077741
hairy ball theorem
Press Enter · cited answer in seconds

hairy ball theorem

Summary

hairy ball theorem is a theorem[1]. It ranks in the top 1% of theorem entities by monthly Wikipedia readership (1,210 views/month).[2]

Key Facts

  • hairy ball theorem's field of work was algebraic topology[3].
  • hairy ball theorem's video is recorded as Hairy ball one pole animated.gif[4].
  • hairy ball theorem's image is recorded as Hairy ball.png[5].
  • hairy ball theorem's instance of is recorded as theorem[6].
  • hairy ball theorem's part of is recorded as list of theorems[7].
  • hairy ball theorem's Commons category is recorded as Hairy ball theorem[8].
  • hairy ball theorem's Freebase ID is recorded as /m/02g43n[9].
  • hairy ball theorem's MathWorld ID is recorded as HairyBallTheorem[10].
  • hairy ball theorem's maintained by WikiProject is recorded as WikiProject Mathematics[11].
  • hairy ball theorem's Microsoft Academic ID is recorded as 2780478405[12].

Body

Career and Affiliations

hairy ball theorem's field of work was algebraic topology[3].

Why It Matters

hairy ball theorem ranks in the top 1% of theorem entities by monthly Wikipedia readership (1,210 views/month).[2] It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[13] It is known by 17 alternative names across languages and contexts.[14]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [4] . wikidata.org.
  2. [5] . wikidata.org.
  3. [6] . wikidata.org.
  4. [3] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . Freebase Data Dumps. wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [13] . Wikidata sitelinks. wikidata.org.
  3. [14] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). hairy ball theorem. Retrieved May 3, 2026, from https://4ort.xyz/entity/hairy-ball-theorem
MLA “hairy ball theorem.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hairy-ball-theorem.
BibTeX @misc{4ortxyz_hairy-ball-theorem_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{hairy ball theorem}}, year = {2026}, url = {https://4ort.xyz/entity/hairy-ball-theorem}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): hairy ball theorem — https://4ort.xyz/entity/hairy-ball-theorem (retrieved 2026-05-03)

Canonical URL: https://4ort.xyz/entity/hairy-ball-theorem · Last refreshed: